Browsing by Author "Briggs, Roger M."
Co-authors for Roger M. Briggs
Supervised by Roger M. Briggs
Showing up to 5 theses - most recently added to Research Commons first.
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Stratigraphy, chronology, and correlation of the Plio-Pleistocene (c. 2.2-0.8 Ma) Kauroa Ash sequence, western central North Island, New Zealand
(The University of Waikato, 2000)The Kauroa Ash beds (K-beds) comprise a 12-20 m-thick sequence of extremely weathered, clay-rich (40-95% <4 μm clay) beds of tephra and loess, and associated paleosols. Found in isolated remnants throughout the western ... -
Geology of the northern Mamaku Plateau
(The University of Waikato, 1986)The geology of the northern Mamaku Plateau is dominated by the rhyolitic Mamaku and Waimakariri lgnimbrites, although exposures of the dacitic Waiteariki Ignimbrite are common in river gorges. The Mamaku lgnimbrite ... -
Petrologic, geochemical and isotopic evolution of rhyolite lavas from the Okataina, Rotorua and Kapenga Volcanic Centres, Taupo Volcanic Zone, New Zealand
(The University of Waikato, 2001)The Okataina Volcanic Centre (OVC) is a highly active modern silicic magmatic system at the northeastern end of the central Taupo Volcanic Zone, North Island, New Zealand. This study presents a set of petrographic, ... -
Weathering of basalt: geotechnical & geochemical aspects
(The University of Waikato, 2002)Geochemical influences on the geotechnical parameters of weathered Karamu Basalt are determined and the likely processes involved in basalt weathering are investigated. Geochemical and geotechnical parameters of basalt at ... -
Petrogenesis and evolution of alkalic basaltic magmas in a continental intraplate setting: the South Auckland Volcanic Field, New Zealand
(The University of Waikato, 2002)The South Auckland volcanic field (SAVF) is situated in a continental intraplate tectonic setting and consists of silica-undersaturated alkalic basalts that erupted from about 100 centres between 1.59 and 0.51 Ma. The ...